Tolong bantuannya beserta carannya

Keliling = 48 m
2p + 2l = 48 m
2(3l) + 2l = 48 m
6l + 2l = 48 m
8l = 48 m
l = 48/8
l = 6 m

p = 3 × l
p = 3 × 6
p = 18 m

Luas = p × l
= 18 × 6
= 108 m²

Jawabannya B
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